Description by couchtuner for The Simpsons Season 17 Episode 3 : Maggie has chicken pox, so Marge throws a “pox party” to help the children of Springfield catch the illness while they are young. During the party, Milhouse’s parents get back together. Milhouse does not like this idea, so he and Bart try to break them up. Instead, they break up Marge and Homer.
Watch It Here : The Simpsons Season 17 Episode 3 Milhouse of Sand and Fog